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114 lines
3.5 KiB
Objective-C
114 lines
3.5 KiB
Objective-C
//
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// ASLayoutElementExtensibility.h
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// AsyncDisplayKit
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//
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// Created by Michael Schneider on 3/29/16.
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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#if AS_TARGET_OS_IOS
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#import <UIKit/UIGeometry.h>
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#else
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#import <Foundation/NSGeometry.h>
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#endif
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#import <objc/runtime.h>
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#pragma mark - ASLayoutElementExtensibility
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@protocol ASLayoutElementExtensibility <NSObject>
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// The maximum number of extended values per type are defined in ASEnvironment.h above the ASEnvironmentStateExtensions
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// struct definition. If you try to set a value at an index after the maximum it will throw an assertion.
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- (void)setLayoutOptionExtensionBool:(BOOL)value atIndex:(int)idx;
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- (BOOL)layoutOptionExtensionBoolAtIndex:(int)idx;
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- (void)setLayoutOptionExtensionInteger:(NSInteger)value atIndex:(int)idx;
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- (NSInteger)layoutOptionExtensionIntegerAtIndex:(int)idx;
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- (void)setLayoutOptionExtensionEdgeInsets:(UIEdgeInsets)value atIndex:(int)idx;
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- (UIEdgeInsets)layoutOptionExtensionEdgeInsetsAtIndex:(int)idx;
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@end
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#pragma mark - Dynamic Properties
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/**
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* Unbox NSNumber based on the type
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*/
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#define ASDK_UNBOX_NUMBER(NUMBER, PROPERTY_TYPE) \
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const char *objCType = [NUMBER objCType]; \
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if (strcmp(objCType, @encode(BOOL)) == 0) { \
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return (PROPERTY_TYPE)[obj boolValue]; \
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} else if (strcmp(objCType, @encode(int)) == 0) { \
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return (PROPERTY_TYPE)[obj intValue]; \
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} else if (strcmp(objCType, @encode(NSInteger)) == 0) { \
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return (PROPERTY_TYPE)[obj integerValue]; \
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} else if (strcmp(objCType, @encode(NSUInteger)) == 0) { \
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return (PROPERTY_TYPE)[obj unsignedIntegerValue]; \
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} else if (strcmp(objCType, @encode(CGFloat)) == 0) { \
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return (PROPERTY_TYPE)[obj floatValue]; \
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} else { \
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NSAssert(NO, @"Data type not supported"); \
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} \
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/**
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* Define a NSObject property
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*/
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#define ASDK_STYLE_PROP_OBJ(PROPERTY_TYPE, PROPERTY_NAME, SETTER_NAME) \
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@dynamic PROPERTY_NAME; \
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- (PROPERTY_TYPE)PROPERTY_NAME \
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{ \
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return (PROPERTY_TYPE)objc_getAssociatedObject(self, @selector(PROPERTY_NAME)); \
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} \
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\
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- (void)SETTER_NAME:(PROPERTY_TYPE)PROPERTY_NAME \
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{ \
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objc_setAssociatedObject(self, @selector(PROPERTY_NAME), PROPERTY_NAME, OBJC_ASSOCIATION_RETAIN); \
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} \
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/**
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* Define an primitive property
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*/
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#define ASDK_STYLE_PROP_PRIM(PROPERTY_TYPE, PROPERTY_NAME, SETTER_NAME, DEFAULT_VALUE) \
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@dynamic PROPERTY_NAME; \
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- (PROPERTY_TYPE)PROPERTY_NAME \
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{ \
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id obj = objc_getAssociatedObject(self, @selector(PROPERTY_NAME)); \
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\
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if (obj != nil) { \
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ASDK_UNBOX_NUMBER(obj, PROPERTY_TYPE); \
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} \
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\
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return DEFAULT_VALUE;\
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} \
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\
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- (void)SETTER_NAME:(PROPERTY_TYPE)PROPERTY_NAME \
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{ \
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objc_setAssociatedObject(self, @selector(PROPERTY_NAME), @(PROPERTY_NAME), OBJC_ASSOCIATION_RETAIN); \
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} \
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/**
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* Define an structure property
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*/
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#define ASDK_STYLE_PROP_STR(PROPERTY_TYPE, PROPERTY_NAME, SETTER_NAME, DEFAULT_STRUCT) \
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@dynamic PROPERTY_NAME; \
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- (PROPERTY_TYPE)PROPERTY_NAME \
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{ \
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id obj = objc_getAssociatedObject(self, @selector(PROPERTY_NAME)); \
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if (obj == nil) { \
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return DEFAULT_STRUCT; \
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} \
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PROPERTY_TYPE PROPERTY_NAME; [obj getValue:&PROPERTY_NAME]; return PROPERTY_NAME; \
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} \
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\
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- (void)SETTER_NAME:(PROPERTY_TYPE)PROPERTY_NAME \
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{ \
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objc_setAssociatedObject(self, @selector(PROPERTY_NAME), [NSValue value:&PROPERTY_NAME withObjCType:@encode(PROPERTY_TYPE)], OBJC_ASSOCIATION_RETAIN_NONATOMIC);\
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} \
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